The e.m.f. generated by a shunt wound D.C. generator is E. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
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Electrical Engineering · all questionsD.C. Generators
D.C. Generators
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In the case of lap winding resultant pitch is
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Armature reaction in a generator results in
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Which of the following statement about D.C. generators is false?
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Following D.C. generator will be in a position to build up without any residual magnetism in the poles
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The following constitute short-circuit in the armature winding.
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In a D.C. generator the actual flux distribution depends upon
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In D.C. generators, the cause of rapid brush wear may be
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In a D.C. generator the number of mechanical degrees and electrical degrees will be the same when
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In a commutator
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In a D.C. generator
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The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be
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The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be
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Shunt generators are most suited for stable parallel operation because of their
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Permeance is the reciprocal of
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The critical resistance of the D.C. generator is the resistance of
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In D.C. generators, the brushes on commutator remain in contact with conductors which
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In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when
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With a D.C. generator which of the following regulation is preferred?
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A separately excited generator as compared to a self-excited generator
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